The UN’s World Meteorological Organisation (WMO) warns that wildfires and heatwaves are increasingly threatening air quality and public health. As fires burn, they release toxic smoke and microscopic pollutants that can degrade the air and raise health risks, undermining progress made on air pollution.

WMO links the problem to the growing severity of wildfires, which increases exposure to fine particulate matter, including PM2.5. Both outlets report that this comes even as governments in parts of the world reduce emissions from industry and transport. The warnings also emphasize that heat conditions can intensify pollution impacts, and that health effects can follow when people inhale smoke and high concentrations of airborne pollutants.

The outlets share the same overall message: the worsening climate-driven wildfire and heat trends are creating new challenges for air-quality management. They differ mainly in emphasis, with one highlighting the broader implications for public health and efforts to address air pollution and climate change, and the other focusing on the contrast between improving regulations and rising smoke-related exposure.